Turbine

[ pdf ] The Protection of Gas Turbine Blades

Download 238 times Topic under Turbine Source: www.platinummetalsreview.com File size: 993.02 KB File type: pdf Last download on: Mon May 20, 2013 08:12:05 AM Short Desciption: Turbine blades in gas turbine engines operate at elevated temperatures ... each of these engine applications a high inges- tion rate of salt laden air is inevitable and, .... sidered against the unit blade cost especially Summary: Turbine blades in gas turbine engines operate at elevated temperatures and in highly oxidising atmospheres that can be contaminated with ,fuel residues and sea water salts. These components, which are expensive to produce, are subjected to high stresses during operation but must be totally reliable during their design life. An economic way to maintain blade properties is to coat the base metal superalloy with a protective layer capable of resisting both high temperature oxidation and hot corrosion. Conventional aluminide coatings are widely used ,for this purpose but platinum aluminides offer improved corrosion resistance. '4 collaborative exercise involving Rolls-Royce and Johnson Matthey has now resulted in the development 0.f a platinum abminide diffusion coating that 0.f fers some advantages over the commercial systems. Bookmark or share this info on Google+ and leave comment at below :

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